Import/export failing on null sandbox URI

[dstillman]

From ​http://forums.zotero.org/comments.php?DiscussionID=29&Focus=74#Comment_74:

When I select either the import or export functions, nothing happens...here's the error message that firefox logs for it:

Error: uncaught exception: [Exception... "" nsresult: "0x804b000a (<unknown>)" location: "JS frame :: chrome://zotero/content/xpcom/translate.js :: anonymous :: line 582" data: no]

---

Line is this._sandbox = new Components.utils.Sandbox("");

[dstillman]

We're getting a whole bunch of errors in the error log for this line and would probably push a b2.r2 if this was fixed soon to reduce support requests.

One person seemed to report that this happened only in the Norwegian version of Firefox and not the English version, but I do see en-US with this error, so the person may have just been trying different sites/references (and we can't reproduce it in Norwegian versions of Firefox).

[simon]

(In [790]) closes #349, import/export failing on null sandbox URI

i have no idea why some people are getting this error when it seems like no one encountered it during beta testing (very specific platform issues?), but i'm fairly certain that this should fix it.